You can guarantee that no players will be looking to start a fight with this referee anytime soon. The Brazilian could possibly be the most ripped referee in the world. Check it out!
You would be excused for thinking that Anderson Daronco is a nightclub bouncer rather than a match official.
The 38-year-old Sao Paolo native has become an internet sensation thanks to his bulging muscles, which instill fear into the hearts of even the toughest players.
Fans will also remember Daronco for his bravery when he reportedly stopped a match after hearing homophobic chants from fans.
Check out his steely muscles in the gallery above.
Do you think Daronco is the biggest referee in world football?